Shipping band for bombs and projectiles



. June 18, 1946. -A. P. BELANGER SHIPPING BAND FOR BOMBS AND PROJECTILES I Filed Jan. 1; 1943 Elelanfler 1 w, CZEWWM.

Patented June 18, 1946 UNITED STATE SHIPPING BAND FOR BOMBS AND PROJECTILES Albert P. Belanger, Chicago, Ill. Application January 1, 1943, Serial No. 471,067

I Claims.

(Granted under the act of March 3, 1883, as

amended April 30, 1928; 370 0. G. 757) The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.

The present invention relates to protective devices such as shipping bands for bombs, particularly for bombs designed or intended for releasing from airplanes, grommets for projectiles, and pipe thread protectors.

Bombs designed for releasing from airplanes are now provided with one or two, and sometimes three suspension lugs or eyes on the cylindrical or lateral portion of the steel body which carries the explosive or charge. These lugs serve to suspend the bombs from the bomb racks of airplanes. Those bombs which are provided with only one lateral suspension lug are intended to be carried by bomb racks by a one point suspension. Two lateral suspension lugs are placed on the said bombs when the bomb racks are'designed for a two point suspension of the bombs; and three lateral suspension lugs are provided when it is intended that the bombs may be carried alternately by bomb racks designed for a one point suspension only or by bomb racks designed for a two point suspension only.

When only one suspension lug is positioned on the cylindrical or lateral portion of the bomb, it is located about midway between the ends of the steel body and in, or about in, a prolongation of a radius of the bomb passing through its center of gravity. The two suspension lugs of two point suspension bombs are placed in a line parallel to the longitudinal axis of the bomb and about equidistant from the center of gravity of the bomb. Where three suspension lugs or eyes are placed on the bomb, two of the lugs are positioned for two point suspension as stated above, and one of the lugs for one point suspensin is positioned diametrically opposite the said two lugs.

At the present time sheet steel shipping bands are used. Each of these bands consists of two semicircular parts which are hinged together at one of their ends and bolted together at their other ends after they have been placed about the bomb and suspension lugs thereof. The semicircular parts constituting each shipping band are substantially alike in construction except for difierences required for hinging and bolting; The semicircular parts of these rings are made of such internal diameter as to fit on the bomb when drawn together by the bolt and are of a construction resembling a hollow. tire of U-shaped cross section, the open part of the U wide, wound tightly as superimposed convolutions being innermost of the ring and against the bomb when in use. The suspension lugs of the bomb, when these steel rings are in use, project within the space which the ring provides by its hollow construction.

Among the objects of the present invention are to provide bands of the type described which will eliminate or practically'eliminate the use of steel in their construction, and which J will be less expensive to manufacture, more rugged, and bet- ,ter able to withstand abuse of an aggravated nature than steel protectors.

An embodiment of the invention is illustrated in the accompanying drawing in which the same character of reference indicates the same part. In this drawing,

Fig. 1 is a perspective view of the steel body of a bomb showing two suspension lugsfor suspending the bomb from a bomb rack of an airplane by a two point suspension.

Fig. 2 is a perspective view of the split ring or annulus which forms part of the bomb shipping band.

Fig. 3 is a perspective view of the locking device which fits over the suspension lugs of the bombs and holds the band from sliding sideways or moving forward.

Fig. 4 is a perspective view of a part of the steel body shown in Figure 1, showing the two suspension lugs and the locking device shown in Figure 3 fitted over each of the suspension lugs.

Fig. 5 is a perspective view in which one shipping band is shown in fully applied condition on the bomb, and another band in the process of being applied. 7

Fig. 6 is a perspective view of a blank from which the locking device shown in Figure 3 may be made by folding along-lines at right angles to its length.

Fig. 7 is a perspective view of the blank shown in Figure 6 partially folded along lines perpendicular to its length, and which upon completion of the folding forms the locking device shown in Figure 3.

Fig. 8 is a perspective view of a fastening device. used to fasten a steel strap about the ring shown in Figure 2 after it has been placed in position on the bomb as shown in Figure 5.

Referring now in detail to the accompanying drawing, the two suspension lugs 2 are applied to steel body 3 of the bomb in the usual manner.

The ring 4 is formed from liner board paper, for example of 0.016 inch caliper and 2 inches or cylindrical layers on a mandrel having the same diameter as the actual bomb at the point where it is to be applied. During this winding a waterproof glue or adhesive is continuously applied over the paper on one or both sides, and the winding and application of glue are continued until a wall thickness of two inches or more is built up according to the requirements of the bomb for which the ring 4 is intended. The s formed rings or annuli are then allowed to loft dry for a period of five days before processing them further. This is done to allow the proper setting time for the glue or adhesive and the escape of all surplus moisture. The best results cannot be obtained by forcing this drying under excessively high temperatures.

After the rings or annuli 4 are prepared and ring, the ring is cut away to produce a recess extending transversely of the ring or annulus 6 and having shoulders 'i,said recess extending from the interior circumference of the ring to a point short of it outer circumference. Slot 5 opens into recess 6. Owing to the presence of slot 5, the annulus may be expanded to facilitate its placement on the bomb and contracted to grip the bomb when secured in position. This contraction occurs when the steel strap, hereinafter referred to. is placed around the annulus and pulled tight.

Rings 4 are then completely immersed for a period of fifteen seconds or more in a bath of a sealing and waterproofing agent such as for example a wax, such as paraflln wax, of 130 F. melting point, and which is in a liquefied condition at a temperature of 260 F. The hot wax at this temperature of 250 F. completely seals all edges of the paper and gives an approximate penetration of one-quarter inch in all directions, which completely seals all exposed surfaces of the ring to avoid moisture penetration of any kind. After the rings are removed from the paraflin bath they are cooled or allowed to cool. The

rings may then be painted any desired color, for example, olive drab, by spraying, or the painting may be postponed until after the rings are applied to the bombs.

The locking device i0 (Fig. 3) for the ring 4 is also made of paper, for example container board, of 0.080 inch caliper. The paper used for forming the,locl 'in g devices is cut to form rectangular pieces or blanks Ii (Fig. 6) with apertures l2, l3 and i4 disposed as shown in Figure 6. This blank is then creased or folded along four lines perpendicular to its length, as shown in Fig. '7 in which the folding into final form i shown under way. The final form resulting from' the folding is shown in Figure 3, wherein the complete locking device is illustrated. The aperture i4 is of such shape and dimensions as to allow the suspension lugs 2 to fit therethrough. It is to be noted that each of the ring locking devices l0 are provided with two pairs of ears l5, l5 and I6, I8, one pair being situated at one end of the locking device and the other pair at .the other end. Ringsl described above fit between these a two pairs of ears and shoulders I, I of recess 6 fit against the lateral walls of the locking device i0 in the assembly. After being for-med as shown in Fig. 3, the locking devices III are immersed in molten paraflln and cooled in the same way as rings 4, and may be painted either before or after assembly on the bomb.

In Figure 8 is shown a fastening device which I have found very useful in connection with rings 4. This fastening device consists of a metallic plate portion 20 having pointed scallops or projections 2| and blunt or square scallops or projections 22. One Pointed projection i on one edge of the plate portion and the other is on the opposite edge, with a blunt projection opposite each of said pointed projections. The pointed projections 2| are bent at right angles to the same side of the plate portion 20 as shown in the drawing. The width of the plate portion 20 is such as to accommodate a steel binding strap and to allow the blunt projections 22 to be tudinal axis of the said ring. This fastening device is described and claimed in my copending application Serial No. 471,068, filed concurrently herewith and now Patent No. 2,353,140, granted July 11,1944.

The assembly on the bomb or bombbody is as follows: First, place the paper locking device ill on a suspension lu 2 of the bomb or bomb body 3 with the suspension lug passi'ngthrouglr the aperture I4 as shown in Figure 4. Next, slide a paper ring or annulus 4 over one end'of the bomb. Then force one of the pairs of ears on the locking device inwardly with the thumbs, for example, ears l8, l6, and proceed to move the ring or annulus 4 over the folded-over ears as shown in Figure 5 until the ring 4 fits between the pairs of ears i5, i5 and i6, i6, and the shoul ders I of the ring are adjacent the side walls of the locking device ID. A steel strap or band 23 is then applied around the outside of the paper ring between the blunt projections 22 of the fastening devices for the steel band. The steel strap 23 is then drawn up under tension as tightly as the steel strap can safely be drawn and the free ends secured together by suitable coupling means 24. The projections 22 on the fasannulus of adhering cylindrical layers of paper,

said annulus being split transversely so as to permit circumferential expansion or contraction thereof, said annulus having a recess transversely thereof opening into its inner peri heral portion to accommodat therein the suspension lug of a bomb.

2. A shipping band for bombs'comprising an annulus of adhering cylindrical layers of paper, said annulus being split transversely so as to permit circumferential expansion or contraction thereof, said annulus having a recess transversely thereof opening into its inner peripheral portion to accommodate therein the suspension lug of a bomb, and means operative between the said annulus and the suspension lug of the bomb for holding the said annulus from displacement longitudinally of the bomb.

'3. A shipping band for bombs comprising an annulus of adhering cylindrical layers of paper,

' bomb, means operative between the said annulus and the suspension lug of the bomb for holding the said annulus from displacement longitudinally of said bomb, and a strap around the outer periphery of said annulus.

4. A shipping band for bombs comprising an annulus of adhering cylindrical layers of paper, said annulus being split transversely so as to permit circumferential expansion or contraction thereof, said annulus having a recess transversely thereof opening into its inner peripheral portion to accommodate therein the suspension lug of a bomb, means operative between the said annulus and the suspension lug of the bomb for holding the said annulus from displacement longitudinally of said bomb, a strap around the outer periphery of said annulus, and-means for holding said strap against sidewise displacement.

5. Means for holding a ring from being displaced lengthwise of its axis comprising a piece of sheet material folded along foursubstantially parallel lines to provide two separated upstanding portions and a central portion between said upstanding portions, with said central portion occupy n a position intermediate the top and bottom of said upstanding portions, said upstanding portions having spaced ears, and said central portion having an opening therethrough permitting the insertion of a lug therein.

6. Means for holding a ring from being displaced lengthwise oi its axis comprising a piece of material of greater length than breadth folded along four lines substantially perpendicular to its length to provide two separated upstanding portions and a central portion between said upstanding portions, with said central portion occupying a position intermediate the top and bottom of said upstanding portions, said upstanding portions having a part removed at their tops to provide spaced ears on each of them, and said central portion having an opening therethrough permitting a lug to be inserted therein.

'I. In combination, a ring and means for holding said ring against displacement lengthwise of its axis, said means comprising a piecev of sheet material folded along four substantially parallel lines to provide two separated upstanding portions and a central portion between said upstanding portions, with said central portion occupying a position intermediate the top and bottom of said upstanding portions, said upstanding portions having spaced ears thereon between which the said ring is positioned to hold it from motion lengthwise of its axis, and said central portion having an opening therethrough permitting a lug to be inserted therein.

8. A shipping band for bombs comprising an annulus of adhering cylindrical layers of paper, said annulus being split transversely so as to permit expansion or contraction thereof, said annulus, at the point where it is split, having arecess transversely thereof opening into its inner peripheral portion to accommodate therein a suspension lug of the bomb.

9. A shipping band for bombs comprising an annulus of adhering layers of paper, said annulus being split transversely so as to permit expansion or contraction thereof, said annulus, at the point where it is split, having a recess transversely thereof opening into its inner peripheral portion to accommodate therein a suspension lug of the bomb; and means fitting in said recess for engaging with the lug on the bomb and with the annulus for holding the said annulus from displacement longitudinally of the bomb.

10. A protecting band for cylindrical ammunition having a non-circumferential protuberance on the cylindrical portion thereof, the said protecting band comprising an annulus of adhering cylindrical layers of paper, said annulus being split transversely and provided transversely thereof where it is split with a recess opening into the inner circumference of the annulus to accommodate therein the said non-circumferential protuberance.

ALBERT P. BELANGER. 

